MATE hidden files question

[ToddAndMargo]

Hi All,

I created a qemu-kvm virtual machine from
    Fedora-MATE_Compiz-Live-x86_64-39-1.5.iso
so I could run Lotus Approach, which I wrote
my accounting software in 30 years ago, in
Win 9.1.

Wine 10.x does not run Approach properly.  Wine
is always two steps forward and three step
backward.

Anyway, MATE won't let me see hidden files
with a lot of File Open on various software,
such as Leafpad.  I have to open a command shell
and cd into the hidden directory to start the
program.  It is ANNOYING.

How do I tell MATE I was to always see hidden files?

Many thanks,
-T